Batch Processing: A Complete Guide

If you work with images regularly — whether for web development, e-commerce, photography, or content creation — you've probably spent hours converting files one at a time. Konvrt's batch processor fixes that.

What Batch Processing Does

The batch processor lets you apply the same conversion pipeline to multiple images at once:

• Format conversion — Convert all files to JPG, PNG, WebP, AVIF, GIF, or BMP
• Quality control — Set a target quality level for the entire batch
• Resizing — Scale all images to a specific width while maintaining proportions
• Aspect ratio cropping — Crop to 1:1, 4:3, 16:9, 3:2, or 9:16
• Watermarking — Overlay text on every image with customizable position and opacity

All of this runs in your browser. No uploads, no server processing.

Step-by-Step Walkthrough

1. Open the Batch Processor

Navigate to /batch. You'll need a Pro or Team plan — batch processing isn't available on the free tier.

2. Configure Your Pipeline

On the left panel, set your desired options:

• Choose an output format
• Set the quality slider
• Optionally set a resize width (0 keeps original size)
• Toggle "Keep aspect ratio" if resizing
• Select a crop ratio if needed
• Add watermark text if desired

3. Add Your Files

Drag and drop images into the center panel, or click to browse. You can add up to 100 files on Pro, or 500 on Team.

Supported input formats: JPG, JPEG, PNG, WebP, GIF, BMP, HEIC, TIFF, AVIF.

4. Process

Click Deploy Pipeline. Each image is processed sequentially through your configured pipeline. You'll see progress update in real time.

5. Download

Once processing completes, click Download All to get a ZIP file containing all converted images.

Saving and Loading Presets

If you run the same batch settings frequently, save them as a preset:

1. Configure your pipeline settings
2. Click Save Pipeline Preset
3. Give it a name (e.g., "E-commerce thumbnails" or "Instagram 1:1")
4. Click Save

To reuse a preset, find it in the Saved Presets section below the pipeline settings and click to load it.

Common Use Cases

E-commerce Product Images

• Format: WebP
• Quality: 85
• Width: 1200px
• Aspect ratio: 1:1

Social Media Batch

• Format: JPG
• Quality: 90
• Width: 1080px
• Aspect ratio: 9:16 (Stories) or 1:1 (Feed)

Web Performance Optimization

• Format: WebP or AVIF
• Quality: 75
• Width: 800px
• No crop

Photography Portfolio

• Format: JPG
• Quality: 95
• Watermark: "Your Name" at bottom-right, 30% opacity
• No resize (keep original dimensions)

Performance Tips

• Smaller batches process faster — if you have 300 images, consider splitting into groups of 100
• Close other browser tabs — batch processing uses significant memory
• Use Chrome or Edge — they tend to handle large WASM workloads better than other browsers
• Lower quality = faster processing — if speed matters more than quality, drop to 75-80%

Limits

Plan	Max Files	Max File Size
Pro	100	Unlimited
Team	500	Unlimited

Files are processed one at a time to keep memory usage stable. Total processing time depends on file sizes and your device's capabilities.